Breast and Thoracic Wall Flashcards
Space between superficial and pectoral fascia
Retromammary space
Function of Suspensory (Cooper’s) ligaments
Fibrous bands of connective tissue Gives suspensory support Divide breast into segments
Series of milk
Mammary Lobules –> Lactiferous ducts –> Lactiferous sinus
Sensory innervation of breast
Intercostal NN, supraclavicular NN
Breakdown of ribs

External Intercostals

Internal Intercostals

Innermost Intercostals

Subcostals

Transversus thoracis

Thoracic aorta supplies…

Subclavian artery supplies posteriorly…

Subclavian artery supplies anteriorly…

Anterior veins

Posterior veins

Innervation of thoracic wall

Order of neurovasculature in intercostal space
- V (vein) – most superior
- A (artery)
- N (nerve)
Membranes of pleural sac



Pneumothorax
- entry of air into the pleural cavity
- Occurs when the potential space of the pleural cavity becomes a real space
Hemothorax
•entry of blood into the pleural cavity
Thoracentesis
•needle inserted to remove excess air, fluid, etc.
Pleura blood supply (parietal and visceral)

•Costodiaphragmatic recesses
•Costal and diaphragmatic pleura in contact


